* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.item {
  width: 230px;
  height: 140px;
  outline: 1px solid;
  margin: 30px auto;
  position: relative;
}
.aside {
  position: absolute;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  width: 100%;
  height: 20px;
  line-height: 20px;
  font-size: 12px;
  padding: 0 10px;
}
.aside .number {
  float: left;
}
.aside .number::before {
  content: '';
  /* outline: 1px solid; */
  width: 16px;
  height: 16px;
  display: inline-block;
  background: url('../assets/icons.png') no-repeat -255px -63px;
  vertical-align: -5px;
}
.aside .date {
  float: right;
}
.modal {
  position: absolute;
  background: rgba(0, 0, 0, 0.5);
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  display: none;
}
.modal .play {
  width: 44px;
  height: 50px;
  display: block;
  background: url('../assets/icons.png') no-repeat -190px -60px;
  /* outline: 1px solid #fff; */

  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: -22px;
  margin-top: -25px;
}

.item:hover .modal {
  display: block;
}

